# config/save-map
Write a given map to a Deft config file in the same format used by `config/save`. Used by the config app to persist only the user overrides diff rather than the entire registry.
## Syntax
[config/save-map $map ?path]
## Parameters
- `$map` — the map to write. Keys may be strings or keywords; values are stringified to their canonical literal form.
- `?path` — (optional) config file path, defaults to `.deft/config.dft`.
## Examples
[config/save-map %{ "log/max-lines" 1000 "log/wrap" true }]
## Returns
Boolean — `true` on success. Atomicity is best-effort (write-then-rename).
## See Also
`config/save`, `config/save-overrides`, `config/load`